Manisuris, 179 granularis, 180, 147i rachis, 14 Maydeae, 138 Mnesithea, 177 laevis, 178, 146i Motor-cells, 35, 51i, 52i, 55i, 57i, 67i, 68i N Nodes, 2, 9, 11i bearded, 11i O Ochlandra, 15 Open vascular bundles, 19 Oropetium, 308 Oropetium Thomaeum, 309, 228i Oryza, 19i sativa, 10, 11, 13i Oryzeae, 43, 123 P Palea, 4, 14 Panicaceae, 43, 45 Paniceae, 43 Panicle, 13, 14 Panicum, 15, 16, 45, 46, 64 Panicum colonum, 11, 28, 30, 80, 89i, 90i leaf-apex, 12 leaf-structure, 37, 38, 40, 58i, 64i section of stem, 28, 29 crus-galli, 28, 29, 30, 75, 78, 6i, 40i, 86i, 87i distachyum, 92, 97i, 98i flavidum, 28, 30, 69, 82i, 83i T. section of stem, 37i, 38i leaf-structure, 38, 39, 40, 66i, 67i fluitans, 28, 31, 72, 84i, 85i section of stem, 30, 42i, 43i leaf-structure, 38, 39, 40, 59i, 65i interruptum, 95, 99i, 100i isachne, 66, 80i, 81i leaf epidermis, 39, 62i, 63i section of stem, 27, 35i javanicum, 1, 5, 86, 1i, 7i, 93i, 94i epidermis of leaf, 34, 49i, 50i inflorescence, 3, 13, 3i leaf sheath, 3, 2i structure, 33, 48i ligule, 13i spikelets, 3, 4, 4i prostratum, 83, 91i, 92i punctatum, 73 ramosum, 89, 95i, 96i section of stem, 25, 31i, 32i repens, 99, 102i, 103i extravaginal shoots, 9, 10i structure of leaf margins, 35, 53i structure of leaf, 35, 39, 52i stagninum, 28, 77, 88i section of stem, 28, 41i tenellum, 97 trypheron, 96, 101i Pappophorum, 288 elegans, 290, 215i, 216i Parenchymatous cells, 20 Paspalum, 15, 45, 47 scrobiculatum, 49, 69i, 70i inflorescence, 13 rachis, 13 Pennisetum, 46, 114 Alopecuros, 6, 116, 113i, 114i inflorescence, 13 Pennisetum cenchroides, 6, 118, 115i, 116i rachis, 13 section of root, 31, 44i root, 32 section of stem, 22, 25i, 26i section of vascular bundle, 19, 20, 22i, 23i typhoideum, 6 Pericycle, 32, 47i Perotis, 123, 135 latifolia, 137, 124i, 125i Phloem, 19, 20 Pileole, 18 Piliferous layer, 31, 44i Piper. _Piper_ Pistil, 16 Pitted vessels, 20 Plumule, 18 Poaceae, 43, 220 Polytoca, 45, 143 barbata, 144, 127i unisexual spikelets, 15 Pommereulla, 284 Cornucopiae, 286, 213i, 214i Primary axis, 18 Prophyllum, 10, 12i Protandry, 16 Protogyny, 16 R Raceme, 13 Rachilla, 14, 16 Rachis, 3, 13 Radicle, 18 Rhizome, 9 Root-hairs, 31, 44i Root-system, 6 Rottboellia, 14, 139, 173 exaltata, 175, 145i section of stem, 20, 21, 24i Myurus, 174, 144i Rottboellieae, 139 S Sacchareae, 138 Saccharum, 138, 148 spontaneum, 149, 129i Scales, 10 Sclerenchyma, 21 Scutellum, 18 Setaria, 45, 46, 109 glauca, 110, 109i inflorescence, 13 section of stem, 23, 24, 29i, 30i intermedia, 111, 110i verticillata, 113, 111i, 112i Sheath of leaf, 10 Shoot-system, 7 Spiciform panicle, 13 raceme, 13 Spike, 13 Spikelet, 3, 13, 14